Sample for SNMP agent (Get, Set)?

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Hello,
I want to build a SNMP agent.
I have downloaded the code and the Help files. Then, I have looked at the examples (snmpSendTrap, snmpSendTrapd, snmpd, snmpGet, ...).
However, I can not find a sample that shows me how to implement a SNMP agent that support the following:

• Get
• Set
• GetNext
• ...

Is there any such sample available?

Many Thanks,
Jose

Original Reported Date: 2011-05-31T02:27:07.51-07:00 Original CodePlex Discussion Thread ID: 259615

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snmpd is the one. Run it at localhost and then you can use the browser to monitor it.

Original Posted Date: 2011-05-31T02:51:33.207-07:00

[lextudio-support]

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Thanks for your reply.
I started to debug the snmpd sample application.

So to implement the SNMP agent, I have to do the following:

• Create for each private MIB variable a class that inherits from ScalarObject (or Tableobject if necessary).
• Like in your snmpd.MainForm, for each new object, call Store.Add()
• To Send a trap (v2), Call Messenger.SendTrapV2()

Is this correct? Do I have to do something else?

Regarding the SET:
I also tried to debug a "SET" command (sysContact). However, it never reaches the SetMessageHandler.Handle() method. I get the popup windows to amend the value and then when sending it, it gets a timeout exception --> Am I doing something wrong?

---> I have installed the iReasoning MIB Browser to further test it. Using this browser, it works. I believe that the timer in #snmp is started prior showing the windows to ask for the new value to set. Therfore, it timed out.

Thanks a lot,
Jose

Original Posted Date: 2011-05-31T03:23:51.653-07:00

[lextudio-support]

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The three points are correct.

You should debug more classes to understand the pipeline design.

For example, SnmpApplication class can give you more insight on how a request is handled from the beginning to the end.

Regards,

Lex

Original Posted Date: 2011-06-05T21:53:42.387-07:00

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Hello again,

I went in debug in SnmpApplication class. So just to make sure, is it correct that I have to create for each MIB variable a class (that inherits from ScalarObject).
My private MIB contains 200 variables. This will end up will 200 classes. Am I correct?

Thanks,

Jose

Original Posted Date: 2011-06-17T06:09:18.133-07:00

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Currently the answer is Yes and you have to manually create the classes.

Technically the Compiler.exe can be enhanced to compile the MIB documents to C# source files (automatically converting the variables to classes). But in both cases this should end up with 200 classes.

Regards,

Lex

Original Posted Date: 2011-06-18T00:01:25.82-07:00

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Marked as Answer Date: 2013-10-06T04:35:37.283-07:00